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Finding the Fourth Proportional to 703,010.80, 1,055,216.04 and 387,616.24

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Solution

The fourth proportional to 703,010.80, 1,055,216.04 and 387,616.24 is: 581,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,010.80 : 1,055,216.04 = 387,616.24 : x
  2. Step 2: Convert to fraction form
    703,010.80/1,055,216.04 = 387,616.24/x
  3. Step 3: Cross multiply
    703,010.80x = 1,055,216.04 × 387,616.24
  4. Step 4: Simplify right side
    703,010.80x = 409,018,873,812.49
  5. Step 5: Solve for x
    x = 409,018,873,812.49/703,010.80
  6. Step 6: Final answer
    x = 581,810.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.